Upgrade 11.2-U2 problems Upgrade not possiable

Hi my FreeNassystem was on Release 11.1-U4 and i upgrade into 11.2-U1 back in December 2018. Today, my system shows only the option upgraded into 11.1-U7. Every time when i upgraded iended up in the legacy UI after reboot and many of WebUI had problems to display the buttons.

I found reading the web:
cd /usr/local/bin/
freenas-verifier
freenas-update
....

i used the verifier and output was no errors.
i used the "freenas-update check" command, which showed me that 11.2-U2 was available.
I...

Upgrade 11.2-U2 problems Upgrade not possiable